Hitachi RAC-DX10CET User manual

Brand: Hitachi

Model: RAC-DX10CET

Category: Split-system air conditioners

Type: User manual

This manual is also suitable for

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ENGLISH

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-DX18CF / RAC-DX18CF

OUTDOOR UNIT INDOOR UNIT

Instruction manual Page 1~24

To obtain the best performance, please read this instruction manual completely.

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Untuk mendapatkan prestasi yang tinggi, sila baca arahan ini sepenuhnya.

RAC-DX18CF

RAS-DX18CF

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SAFETY PRECAUTION

●

Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.

●

Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which,

if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may result

in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

●

The sign indicate the following meanings.

●

Please keep this manual after reading.

WARNING

PRECAUTIONS DURING INSTALLATION

● Do not reconstruct the unit.

Water leakage, fault, short circuit or ﬁ re may occur if you reconstruct

the unit by yourself.

● Please ask your sales agent or qualiﬁ ed technician for the installation

of your unit. Water leakage, short circuit or ﬁ re may occur if you install

the unit by yourself.

● Please use earth line.

Do not place the earth line near water or gas pipes, lightning-conductor,

or the earth line of telephone. Improper installation of earth line may

cause electric shock.

● Be sure to use the speciﬁ ed piping set for R410A. Otherwise, this may

result in broken copper pipes or faults.

● A circuit breaker should be installed depending on the mounting site of

the unit. Without a circuit breaker, the danger of electric shock exists.

● Do not install the unit near a location where there is ﬂ ammable gas.

The outdoor unit may catch ﬁ re if ﬂ ammable gas leaks around it.

● Please ensure smooth ﬂ ow of water when installing the drain hose.

CAUTION

Make sure to connect earth line.

Indicates the instructions that must be followed.

The sign in the ﬁ gure indicates prohibition.

PRECAUTIONS DURING OPERATION

● Avoid an extended period of direct air ﬂ ow for your health.

● Do not insert a ﬁ nger, a rod or other objects into the air outlet or inlet. As

the fan is rotating at a high speed, it will cause injury. Before cleaning, be

sure to stop the operation and turn the breaker OFF.

● During thunder storm, disconnect and turn off the circuit breaker.

● Do not use any conductor as fuse wire, this could cause fatal accident.

● This unit has UV LED which emits ultra violet light.

AVOID DIRECT EYE EXPOSURE.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

● Should abnormal situation arises (like burning smell), please stop operating the unit

and turn off the circuit breaker. Contact your agent. Fault, short circuit or ﬁ re may

occur if you continue to operate the unit under abnormal situation.

● Please contact your agent for maintenance. Improper self maintenance may cause

electric shock and ﬁ re.

● Please contact your agent if you need to remove and reinstall the unit. Electric

shock or ﬁ re may occur if you remove and reinstall the unit yourself improperly.

● If the supply cord is damaged, it must be replaced by the special cord

obtainable at authorized service/parts centers.

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ENGLISH

PRECAUTIONS DURING OPERATION

● Do not attempt to operate the unit with wet hands, this could cause fatal

accident.

● Do not direct the cool air coming out from the air-conditioner panel to face

household heating apparatus as this may affect the working of apparatus

such as the electric kettle, oven etc.

● Do not place plants directly under the air ﬂ ow as it is bad for the plants.

● Please ensure that outdoor mounting frame is always stable, ﬁ rm and

without defect. If not, the outdoor unit may collapse and cause danger.

● Do not splash or direct water to the body of the unit when cleaning it as

this may cause short circuit.

● When operating the unit with the door and windows opened, (the room humidity is always above

80%) and with the air deﬂ ector facing down or moving automatically for a long period of time,

water will condense on the air deﬂ ector and drips down occasionally. This will wet your furniture.

Therefore, do not operate under such condition for a long time.

● If the amount of heat in the room is above the cooling capability of the unit (for example: more

people entering the room, using heating equipments and etc.), the preset room temperature

cannot be achieved.

● This appliance can be used by children aged from 8 years and above and persons with reduced

physical, sensory or mental capabilities or lack of experience and knowledge if they have been

given supervision or instruction concerning use of the appliance in a safe way and understand

the hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance shall not be made

by children without supervision.

● Do not climb on the outdoor unit or put objects on it.

● Please switch off the unit and turn off the circuit breaker during cleaning,

the high-speed fan inside the unit may cause danger.

● Turn off the circuit breaker if the unit is not to be operated for a long period.

● The product shall be operated under the manufacturer speciﬁ cation and

not for any other intended use.

● Do not put water container (like vase) on the indoor unit to avoid water

dripping into the unit. Dripping water will damage the insulator inside the

unit and causes short-circuit.

● Do not use any aerosol or hair sprays near the indoor unit. This chemical

can adhere on heat exchanger ﬁ n and blocked the evaporation water

ﬂ ow to drain pan. The water will drop on tangential fan and cause water

splashing out from indoor unit.

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INDOOR UNIT

NAMES AND FUNCTIONS OF EACH PART

Pre-ﬁ lter

To prevent dust from coming into the indoor unit.

(Refer page 19)

Front panel

Indoor unit indicators

Light indicator showing the operating condition.

(Refer page 5)

Horizontal deﬂ ector

●

Vertical deﬂ ector

(Air Outlet)

(Refer page 14)

Remote controller

Send out operation signal to the indoor unit. So as

to operate the whole unit.

(Refer page 6)

OUTDOOR UNIT

Drain pipe

Condensed water drain to outside.

Connecting cord and insulation pipe for piping

Air inlet (Back, Left side)

Air outlet

WIDTH (mm)

900

750

MODEL

RAS-DX18CF

RAC-DX18CF

HEIGHT (mm)

300

570

DEPTH (mm)

230

280

MODEL NAME AND DIMENSIONS

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ENGLISH

INDOOR UNIT INDICATORS

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work.

● By pressing the temporary switch, the operation is done in previously set operation mode.

● When the operation is done using the temporary switch after the power source is turned off and turn

on again, the operation is done in automatic mode.

OPERATION INDICATOR

OPERATION LAMP

This lamp lights during operation.

TIMER LAMP

This lamp lights when the timer is working.

FILTER LAMP

When the device is operated for a total of about

200 hours, the FILTER lamp lights to indicate

that it is time to clean the ﬁ lter. The lamp goes

out when the “

(AUTO SWING)” button is

pressed while the device is on “STANDBY MODE”.

UV FRESH

UV Fresh lamp can be ON or OFF by press the

operation button. Please refer to page 10 for

detail operation.

AIR SLEEP

This lamp lights when the Air Sleep function is

in operation. Please refer to page 9 for detail

operation.

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NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT

REMOTE CONTROLLER

This controls the operation of the indoor unit. Signal range to reach indoor unit is about 7 meters. If

inverter lamp is used, the range of control may be shorter.

This unit can be ﬁ xed on a wall using the ﬁ xture provided. Before ﬁ xing it, make sure the indoor unit

can be controlled from the remote controller.

● Transmission sign

The transmission sign blinks when a signal is sent.

● Display

This indicates the room temperature selected, timer status, function

and intensity of circulation selected.

● AIR SLEEP button

Use this button to set a comfortable air sleep temperature in the

room or start operation.

● DEHUMIDIFYING button

Use this button to dehumidify the room or start operation.

● COOLING button

Use this button to set cooling mode in the room or start operation.

● RESET button

● POWERFUL MODE buttonA

Use this button to deliver faster and more comfortable air-conditioning

or start operation.TO

● STOP button

Press this button to stop operation only.

● ONE-TOUCH SILENT button

Use this button to set silent condition.

● FAN SPEED selector

This determines the fan speed. Each time you press this button, the

intensity of circulation will change from (AUTO) to (HI) to

(MED) to (LOW) to (SILENT).

● AUTO SWING button

Controls the angle of the horizontal air deﬂ ector.

● TEMPERATURE button

Use this button to raise or lower the temperature setting. (Keep

pressed, and the value will change more quickly

● OFF-TIMER button

Select to turn OFF time.

● ON-TIMER button

Select to turn ON time.

Precautions for Use

● Do not put the remote controller in the following places.

● In direct sunlight.

● In the vicinity of a heater.

● Handle the remote controller carefully. Do not drop it on the

ﬂ

oor, and protect it from water.

● Once the outdoor unit stops, it will not restart for about 3

minutes (unless you turn the power switch off and on or unplug

the power cord and plug it in again).

This is to protect the device and does not indicate a failure.

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ENGLISH

COOLING OPERATION

Use the device for cooling when the outdoor temperature is 21~ 43°C.

If indoor humidity is very high (over 80%), some dew may form on the air outlet grille of the indoor unit.

Press the (COOLING) button so that the display indicates

(COOL).

Cooling operation starts with a beep.

The cooling function does not start if the temperature setting

is higher than the current room temperature (even though the

(OPERATION) lamp lights). The cooling function will start

as soon as you set the temperature below the current room

temperature.

Set the desired FAN SPEED with the

(FAN SPEED)

button (the display indicates the setting).

(AUTO) : The FAN SPEED is HI at ﬁ rst and varies to

MED or LOW automatically when the preset

temperature has been reached.

(HI) : Hi fan speed mode.

(MED) : Medium fan speed mode.

(LOW) : Low fan speed mode.

(SILENT) : Silent fan speed mode.

Set the desired room temperature with the TEMPERATURE

button (the display indicates the setting).

The range of 25 ~ 28°C is recommended as

the room temperature for cooling.

If the temperature setting is 27°C, the room

temperature will be controlled at around 27°C.

The temperature setting and the actual room temperature may

vary somewhat depending on conditions.

Press the button to stop operation.

■ As the settings are stored in memory in the remote controller, you

only have to press the

(COOLING) button to repeat the same

settings next time.

STOP

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DEHUMIDIFYING OPERATION

Use the device for dehumidifying when the room temperature is over 16°C.

When it is under 15°C, the dehumidifying function will not work.

■ Dehumidifying Function

When the room temperature is higher than the temperature setting: The device will dehumidify the

room, reducing the room temperature to the preset level.

When the room temperature is lower than the temperature setting: Dehumidifying will be performed at

the temperature setting slightly lower than the current room temperature, regardless of the temperature

setting. The function will stop (the indoor unit will stop emitting air) as soon as the room temperature

becomes lower than the setting temperature. You might feel a bit colder in dehumidifying operation.

■ As the settings are stored in memory in the remote controller, you

only have to press the

(DEHUMIDIFY) button next time.

Set the desired room temperature with the TEMPERATURE

button (the display indicates the setting).

The range of 20-26˚C is recommended as the

room temperature for dehumidifying.

Press the (DEHUMIDIFY) button.

Dehumidifying operation starts with a beep.

The FAN SPEED is set at SILENT or LOW automatically.

The FAN SPEED button can be used to change between

SILENT and LOW only.

Press the button to stop operation.

STOP

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ENGLISH

AIR SLEEP MODE

The sensor detects changes to the infrared generated by human bodies. Therefore, the accuracy of sensor may be

affected in the following cases:

■ The activity level is very low (reading, watching TV, etc.) or human bodies are blocked by a screen, cabinet or

glass board.

■ The indoor temperature is very high and exceeds or approaches the human body temperature (when the refrigeration

just begins).

■ The person wears thick clothes and turns his/her back to the air conditioner.

■ Curtains or plant leaves swing due to pet movement or airﬂ ow.

With the air sleep sensor, the air conditioner can monitor the activity/movement level in a room and adjust the temperature

and humidity automatically, thus achieving the purpose of comfortable sleep environment and enegry saving.

Press the (Air Sleep) button.

● Air sleep operation starts with a signal received sound “beep”. (Air

sleep lamp at indoor unit lights during operation.)

Set the desired room temperature with the TEMPERATURE button (the

display indicates the setting).

The range of 25-28°C is recommended as the room

temperature for comfortable sleep.

● At ﬁ rst unit will operate at cooling mode for 1 hour at setting conditions.

● If there is only small activity/movement or sleep is conﬁ rmed, the

temperature will be increased 1°C and the unit will continue running for

1 hour. The fan speed will be changed to SILENT.

● If the condition of activity in the room stable, then the unit will continue

running with the temperature increased of another 1°C.

● During running Air Sleep, if big activity/movement is detected, the

temperature and fan speed will be resume back at previous setting.

● The desire fan speed can be selected by press button.

To resume back to the SILENT fan speed, please press

button.

NOTE

CANCELLATION of AIR SLEEP Operation

Cancel Condition

Operation mode after cancel

Press button.

Stop operation

Press button

COOLING operation

DEHUMIDIFYING operation

Press button

NOTE

(1) POWERFUL operation : POWERFUL operation will be a priority

over the AIR SLEEP operation.

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HOW TO ACTIVATE AND TO CANCEL UV FRESH

After activation of any operation button ( or or ), lamp will ON. By pressing

the operation button again which is set previously, it can OFF the

lamp.

– During ﬁ rst time usage.

– After enter standby mode.

CONDITION 1

CONDITION 2

Operation Button

Press or or

Press or or again

Press

Press or or

Press or or again

Press

Press or or

Press or or again

Note:

During ﬁ rst time usage, if

Lamp is OFF, it is not malfunction. Press operation button or

or to ON the Lamp.

OFF

Operation Button

Lamp

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ENGLISH

ONE-TOUCH SILENT MODE

Press the button.

● One time push to activate Super Silent symbol.

● Operation start with a signal received sound “beep”.

● Unit will be forced to operate in Cooling mode and indoor

fan speed will be changed to SILENT.

● Press again to stop it, unit will continue to operate in cooling

mode base on previous setting.

CANCELLATION of ONE-TOUCH SILENT Operation

Cancel Condition

Operation mode after cancel

Press button.

Stop operation

Press button

POWERFUL operation

Press button

Press

button

NOTE:

Under ONE-TOUCH SILENT operation and quiet environment, phenomena like ﬂ owing noise of refrigerant

in the refrigerating cycle may occur, but this is normal for the operation.

Cooling operation based on

previous fan speed

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ONE-TOUCH POWERFUL MODE

Press the button.

● Operation start with a signal received sound “beep”.

● Unit will be forced operate in (COOL) with POWERFUL

MODE fan speed for 60 minutes, within this 60 minutes, fan

speed may varies.

Indicator appear during this period while

temperature and fan speed setting display remain unchanged.

(Operation lamp at indoor unit is blinking).

● After 60 minutes, operation lamp stop blinking and indicator

will disappear while unit will be in previous mode setting.

Temperature and fan speed will change to previous setting.

● Air blow sound will be slightly high due to forced operation.

NOTE

(1) OFF TIME setting : OFF timer will be a priority over

the POWERFUL operation time.

(2)

ON TIME setting : POWERFUL operation will be a

priority over the ON timer operation

time.

CANCELLATION of POWERFUL Operation

Cancel Condition

Operation mode after cancel

Press or SLEEP timer time is up

Stop operation

key press

DEHUMIDIFYING operation

Press or

60 minutes time is up

COOLING operation in

previous setting

key press

AIR SLEEP operation

If feeling so cold,

cancel this powerful

mode as mentioned in

“CANCELLATION of

POWERFUL operation”.

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ENGLISH

HOW TO SET THE TIMER

■ ON Timer and OFF Timer are available.

OFF TIME setting

● Select the OFF TIME by pressing the (OFF) Button.

● Setting time will change according to the below sequence

when you press the button.

OFF Timer Reservation

■ Operation stop at setting time

ON TIME setting

● Select the ON TIMER by pressing the (ON)

Button.

● Setting time will change according to the below

sequence.

ON Timer Reservation

■ Operation will start for setting

temperature at setting time (The starting

time may different depend on the room

temperature and set temperature).

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AIR FLOW LOUVERS ADJUSTMENTS

Adjustment of the conditioned air to the left and right.

Hold the second vertical air deﬂ ector of each set of vertical

air deﬂ ectors from right as shown in the ﬁ gure and adjust the

conditioned air to the left and right.

● If the “ (AUTO SWING)” button is pressed once,

the horizontal air deﬂ

ector swings up and down. If the

button is pressed again, the deﬂ ector stops in its current

position. Several seconds (about 6 seconds) may be

required before the deﬂ

ector starts to move.

● Use the horizontal air deﬂ ector within the adjusting range

shown on the right.

● When the operation is stopped, the horizontal air deﬂ ector

moves and stops at the position where the air outlet

closes.

CAUTION

● In “Cooling” operation, do not keep the horizontal air

deﬂ ector swinging for a long time. Some dew may form

on the horizontal air deﬂ ector and dew may drop.

Adjustment of the conditioned air in the upward and downward

directions.

The horizontal air deﬂ ector is automatically set to the proper

angle suitable for each operation. The deﬂ ector can be swung

up and down continuously and also set to the desired angle

using the “

(AUTO SWING)” button.

Do not insert a ﬁ nger, a rod or other objects into the air outlet or inlet as the fan is rotating at a high speed,

it will cause injury. Before any cleaning or adjusting the deﬂ ectors, be sure to switch OFF the operation.

WARNING

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ENGLISH

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

Remove the cover as shown in the ﬁ gure and

take out the old batteries.

Install the new batteries.

The direction of the batteries should match the

marks in the case.

1. Do not use new and old batteries, or different kinds

of batteries together.

2. Take out the batteries when you do not use the remote

controller for 2 or 3 months.

3. Use high quality and high performance AAA batteries

to avoid short operating life and electrolyte leakages

CAUTION

When using the remote control, if there is no response from the air conditioner unit and or the remote

control has fading and dim displays, the batteries in the remote control device need to be removed and

replaced with new ones

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Suitable Room Temperature Install curtain or blinds

Ventilation Effective Usage Of Timer

Do Not Forget To Clean The Pre-Filter

Please Adjust Suitable Temperature

For Baby And Children

Warning

Freezing temperature

is bad for health and a

waste of electric power.

It is possible

to reduce heat

entering the

room through

windows.

At night, please use the “OFF or ON timer

operation mode”, together with your wake up

time in the morning. This will enable you to

enjoy a comfortable room temperature. Please

use the timer effectively.

Dusty pre-ﬁ lter will reduce the air volume and

the cooling efﬁ ciency. To prevent from wasting

electric energy, please clean the ﬁ lter every

2 weeks.

Please pay attention to the room temperature

and air ﬂ ow direction when operating the unit

for baby, children and old folks who have

difﬁ culty in movement.

Caution

Do not close the room for a long period of

time. Occasionally open the door and windows

to allow the

entrance of

fresh air.

THE IDEAL WAYS OF OPERATION

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ENGLISH

FOR USER’S INFORMATION

The Air Conditioner And The Heat Source In The Room

Not Operating For A Long Time

When Lightning Occurs

Caution

If the amount of heat in the room is above the cooling

capability of the air conditioner (for example: more

people entering the room, using heating equipments

and etc.), the preset room temperature cannot be

achieved.

When the indoor unit is not to be used for a long

period of time, please switch off the power from the

mains. If the power from mains remains “ON”, the

indoor unit still consumes about 8W in the operation

control circuit even if it is in “OFF” mode.

Warning

To protect the whole unit during lightning, please

stop operating the unit and remove the plug from

the socket.

OFF

Interference From Electrical Products

Caution

To avoid noise interference, please place the indoor

unit and its remote controller at least 1m away from

electrical products.

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ATTACHING THE AIR PURIFYING FILTERS

Open the front panel

● Pull up the front panel by holding it at both sides

with both hands.

Remove the Pre-ﬁ lter

● Push upward to release the claws and pull out the

Pre-ﬁ lter.

Attaching the air purifying ﬁ lters

● Attach the air purifying ﬁ lters to the frame by gently

compress its both sides and release after insertion

into Pre-ﬁ lter frame.

Attach the Pre-ﬁ lters

● Attach the Pre-ﬁ lters by ensuring that the surface

written “FRONT” is facing front.

● After attaching the Pre-ﬁ lters, push the front panel at

three arrow portions as shown in ﬁ gure and close it.

Cleaning and maintenance must be carried out when ﬁ lter lamp lights. Before cleaning, stop

operation and switch off the power supply.

CAUTION

Do not bend the air purifying

ﬁ lter as it may cause damage

to the structure.

Please do not smell direct from

source of ﬁ lter.

NOTE

● In case of removing the air purifying ﬁ lters, please follow the above procedures.

● The cooling capacity is slightly weakened and the cooling speed becomes slower when the air

purifying ﬁ lters are used. So, set the fan speed to "HIGH" when using it in this condition.

● Air purifying ﬁ lters are not washable. It is recommended to use vacuum to clean it. It can be use

for 1 year time. Type number for this air purifying ﬁ lter is <SPX-CFH22>. Please use this number

for ordering when you want to renew it.

● Do not operate the air conditioner without Pre-ﬁ lter. Dust may enter the air conditioner and fault

may occur.

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ENGLISH

MAINTENANCE

Cleaning and maintenance must be carried out when ﬁ lter lamp lights. Before cleaning, stop

operation and switch off the power supply.

1. PRE-FILTER

Clean the Pre-ﬁ lter, as it removes dust inside the room. In case the Pre-ﬁ lter is full of dust, the air

ﬂ ow will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to

clean the Pre-ﬁ lter following the procedure below.

CAUTION

Open the front panel and remove the Pre-ﬁ lter

● Gently lift and remove the air purifying ﬁ lters

from the air purifying ﬁ lter frame.

Vacuum dust from the Pre-ﬁ lter and air purifying

ﬁ lter using vacuum cleaner. If there is too much

dust, rinse under running tap water and gently

brush it with soft bristle brush. Allow ﬁ lters to

dry in shade.

● Re-insert the air purifying ﬁ lter to the ﬁ lter

frame. Set the Pre-ﬁ lter with “FRONT” mark

facing front, and slot them into the original

state.

● After attaching the Pre-ﬁ lters, push the front

panel at three arrow portions as shown in

ﬁ gure and close it.

CAUTION

● Do not wash with hot water at more than 40°C. The pre-ﬁ lters may shrink.

● When washing it, shake off moisture completely and dry it in the shade; do not expose it directly

to the sun. The pre-ﬁ lters may shrink.

● Do not use detergent on the air purifying ﬁ lter as some detergent may deteriorate the air purifying

ﬁ lter electrostatic performance.

NOTE:

● Air purifying ﬁ lter should be cleaned every month or sooner if noticeable loading occurs. When

used overtime, it may loose its deodorizing function. For maximum performance, it is recommended

to replace it every 1 year depending on application requirements.

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2. CLEANING OF FRONT PANEL

CAUTION

● Never use hot water (above 40°C), benzine, gasoline, acid, thinner

or a brush, because they will damage the plastic surface and the

coating.

Removing the Front Panel

● When the front panel is fully opened with both

hands, push the right arm to the inside to

release it, and while closing the front panel

slightly, pull it out forward.

Attaching the Front Panel

● Move the projections of the left and right

arms into the Flanges in the unit and securely

insert them into the holes.

● Remove the front panel and wash with clean

water.

Wash it with a soft sponge.

After using neutral detergent, wash thoroughly

with clean water

● When front panel is not removed, wipe it with

a soft dry cloth. Wipe the remote controller

thoroughly with a soft dry cloth.

● Wipe the water thoroughly.

If water remains at indicators or signal

receiver of indoor unit, it causes trouble.

Method of removing the front panel.

Be sure to hold the front panel with both

hands to detach and attach it.

RAS-RAC-DX18CF (EN2) 20RAS-RAC-DX18CF (EN2) 20 3/31/15 2:57 PM3/31/15 2:57 PM

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Hitachi RAC-DX10CET User manual

Brand: Hitachi

Model: RAC-DX10CET

Category: Split-system air conditioners

Type: User manual

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Hitachi RAC-DX10CET User manual

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